/* TEMPLATE GENERATED TESTCASE FILE
Filename: CWE90_LDAP_Injection__getQueryString_Servlet_22a.java
Label Definition File: CWE90_LDAP_Injection.label.xml
Template File: sources-sink-22a.tmpl.java
*/
/*
 * @description
 * CWE: 90 LDAP Injection
 * BadSource: getQueryString_Servlet Parse id param out of the URL query string (without using getParameter())
 * GoodSource: A hardcoded string
 * Sinks:
 *    BadSink : data concatenated into LDAP search, which could result in LDAP Injection
 * Flow Variant: 22 Control flow: Flow controlled by value of a public static variable. Sink functions are in a separate file from sources.
 *
 * */

package testcases.CWE90_LDAP_Injection;

import testcasesupport.*;

import javax.servlet.http.*;

import javax.naming.*;
import javax.naming.directory.*;

import java.util.Hashtable;
import java.util.logging.Level;

public class CWE90_LDAP_Injection__getQueryString_Servlet_22a extends AbstractTestCaseServlet
{
    /* The public static variable below is used to drive control flow in the source function.
     * The public static variable mimics a global variable in the C/C++ language family. */
    public static boolean badPublicStatic = false;

    public void bad(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data;

        badPublicStatic = true;
        data = (new CWE90_LDAP_Injection__getQueryString_Servlet_22b()).badSource(request, response);

        Hashtable<String, String> environmentHashTable = new Hashtable<String, String>();
        environmentHashTable.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        environmentHashTable.put(Context.PROVIDER_URL, "ldap://localhost:389");
        DirContext directoryContext = null;

        try
        {
            directoryContext = new InitialDirContext(environmentHashTable);
            /* POTENTIAL FLAW: data concatenated into LDAP search, which could result in LDAP Injection */
            String search = "(cn=" + data + ")";

            NamingEnumeration<SearchResult> answer = directoryContext.search("", search, null);
            while (answer.hasMore())
            {
                SearchResult searchResult = answer.next();
                Attributes attributes = searchResult.getAttributes();
                NamingEnumeration<?> allAttributes = attributes.getAll();
                while (allAttributes.hasMore())
                {
                    Attribute attribute = (Attribute) allAttributes.next();
                    NamingEnumeration<?> allValues = attribute.getAll();
                    while(allValues.hasMore())
                    {
                        IO.writeLine(" Value: " + allValues.next().toString());
                    }
                }
            }
        }
        catch (NamingException exceptNaming)
        {
            IO.logger.log(Level.WARNING, "The LDAP service was not found or login failed.", exceptNaming);
        }
        finally
        {
            if (directoryContext != null)
            {
                try
                {
                    directoryContext.close();
                }
                catch (NamingException exceptNaming)
                {
                    IO.logger.log(Level.WARNING, "Error closing DirContext", exceptNaming);
                }
            }
        }

    }

    /* The public static variables below are used to drive control flow in the source functions.
     * The public static variable mimics a global variable in the C/C++ language family. */
    public static boolean goodG2B1PublicStatic = false;
    public static boolean goodG2B2PublicStatic = false;

    public void good(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        goodG2B1(request, response);
        goodG2B2(request, response);
    }

    /* goodG2B1() - use goodsource and badsink by setting the static variable to false instead of true */
    private void goodG2B1(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data;

        goodG2B1PublicStatic = false;
        data = (new CWE90_LDAP_Injection__getQueryString_Servlet_22b()).goodG2B1Source(request, response);

        Hashtable<String, String> environmentHashTable = new Hashtable<String, String>();
        environmentHashTable.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        environmentHashTable.put(Context.PROVIDER_URL, "ldap://localhost:389");
        DirContext directoryContext = null;

        try
        {
            directoryContext = new InitialDirContext(environmentHashTable);
            /* POTENTIAL FLAW: data concatenated into LDAP search, which could result in LDAP Injection */
            String search = "(cn=" + data + ")";

            NamingEnumeration<SearchResult> answer = directoryContext.search("", search, null);
            while (answer.hasMore())
            {
                SearchResult searchResult = answer.next();
                Attributes attributes = searchResult.getAttributes();
                NamingEnumeration<?> allAttributes = attributes.getAll();
                while (allAttributes.hasMore())
                {
                    Attribute attribute = (Attribute) allAttributes.next();
                    NamingEnumeration<?> allValues = attribute.getAll();
                    while(allValues.hasMore())
                    {
                        IO.writeLine(" Value: " + allValues.next().toString());
                    }
                }
            }
        }
        catch (NamingException exceptNaming)
        {
            IO.logger.log(Level.WARNING, "The LDAP service was not found or login failed.", exceptNaming);
        }
        finally
        {
            if (directoryContext != null)
            {
                try
                {
                    directoryContext.close();
                }
                catch (NamingException exceptNaming)
                {
                    IO.logger.log(Level.WARNING, "Error closing DirContext", exceptNaming);
                }
            }
        }

    }

    /* goodG2B2() - use goodsource and badsink by reversing the blocks in the if in the sink function */
    private void goodG2B2(HttpServletRequest request, HttpServletResponse response) throws Throwable
    {
        String data;

        goodG2B2PublicStatic = true;
        data = (new CWE90_LDAP_Injection__getQueryString_Servlet_22b()).goodG2B2Source(request, response);

        Hashtable<String, String> environmentHashTable = new Hashtable<String, String>();
        environmentHashTable.put(Context.INITIAL_CONTEXT_FACTORY,"com.sun.jndi.ldap.LdapCtxFactory");
        environmentHashTable.put(Context.PROVIDER_URL, "ldap://localhost:389");
        DirContext directoryContext = null;

        try
        {
            directoryContext = new InitialDirContext(environmentHashTable);
            /* POTENTIAL FLAW: data concatenated into LDAP search, which could result in LDAP Injection */
            String search = "(cn=" + data + ")";

            NamingEnumeration<SearchResult> answer = directoryContext.search("", search, null);
            while (answer.hasMore())
            {
                SearchResult searchResult = answer.next();
                Attributes attributes = searchResult.getAttributes();
                NamingEnumeration<?> allAttributes = attributes.getAll();
                while (allAttributes.hasMore())
                {
                    Attribute attribute = (Attribute) allAttributes.next();
                    NamingEnumeration<?> allValues = attribute.getAll();
                    while(allValues.hasMore())
                    {
                        IO.writeLine(" Value: " + allValues.next().toString());
                    }
                }
            }
        }
        catch (NamingException exceptNaming)
        {
            IO.logger.log(Level.WARNING, "The LDAP service was not found or login failed.", exceptNaming);
        }
        finally
        {
            if (directoryContext != null)
            {
                try
                {
                    directoryContext.close();
                }
                catch (NamingException exceptNaming)
                {
                    IO.logger.log(Level.WARNING, "Error closing DirContext", exceptNaming);
                }
            }
        }

    }

    /* Below is the main(). It is only used when building this testcase on
     * its own for testing or for building a binary to use in testing binary
     * analysis tools. It is not used when compiling all the testcases as one
     * application, which is how source code analysis tools are tested.
     */
    public static void main(String[] args) throws ClassNotFoundException,
           InstantiationException, IllegalAccessException
    {
        mainFromParent(args);
    }

}